President Donald Trump’s deputies released a draft regulation which will shut the 2015 Flores catch-and-release loophole, and largely end the migration of unskilled Central American laborers into the United States.

The regulation will help Trump fulfill his campaign promise to block illegal migration because it will allow officials to quietly detain migrant families together while judges assess their legal claims.

Few migrants can win their immigration or asylum claims, so the no-release process will likely deter many poor migrants — such as Guatemalan David Xol — from paying smugglers to help them seek jobs in the United States.

The 2015 Flores catch-and-release loophole allows migrants who bring their children to be released into the United States after just 20 days in detention. For example, the Texas Tribune reported that:

Xol said he brought [his seven-year-old child] Byron with him on the advice of a local smuggler, who told him that parents with children have an easier time getting into the country than adults traveling solo.

Once the Flores-replacement regulation is finalized and published in several months, it will be hammered by lawsuits and progressive judges. The rule will then be approved or rejected by the Supreme Court — unless a pro-migration Democratic President withdraws the rule in early 2021.

Elite pro-migration lawyers and wealthy progressives immediately promised to block the regulation, even though it would help nudge up Americans’ wages by reducing the labor inflow, and also reduce crowding in public schools by reducing the intake of foreign children and gang members. In 2017, for example, officials were forced to provide 400,000 work permits to unskilled migrants who were allowed into the country to claim asylum by President Barack Obama.